Where are you getting a 30-10-10 from and who is recommending this to you?
My nutes are 3-2-4 veg and 2-4-3 flower.
30-10-10 is usually for sod fields if I'm not mistaken. A friend of mine works on a golf course as the superintendent and he uses a mixture including some 30-10-10 and some cal/mag powder in his early spring feeding when the grass is just coming back. Says it enhances the durability of the turf so maybe your treating yourself but I dunno... sounds a bit strong, even at 1/4 strength